If the flirting thing works for you that's great. My H would not have gotten it. He needs a 2x4. You should do whatever feels comfortable and that will come across as sincere. Maybe start with the flirtation and graduate to a more direct approach if that is not getting a reaction.
And remember in DR, the book talks about testing the waters and if you get a negative response then retreat and give it more time.
He: WAH Me: LBW Precious: DD
~ I'm grateful for every day I have to improve the way I relate.